8 a.m. Simpson straps on her pedometer and hits the streets with Johnson and Maxwell. "I'm trying to do at least 14,000 steps a day," she says. Afterward: a snack of berries, bananas, melon or grapefruit (0 PointsPlus).

11 a.m. Four days a week, Simpson reports to trainer Harley Pasternak for a 45-minute session. After a cardio warm-up, it's circuit time: seven sets (up to 30 reps each) of dumbbell triceps extensions, hamstring curls and crunches with a medicine ball throw. "Her waist is going in, and her thighs are growing smaller," says Pasternak.